52 Adding Parts
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CAUTION: Before you begin any of the procedures in this section,
follow the safety instructions on page 7.
CAUTION: To guard against electrical shock, always unplug your
computer from the electrical outlet before opening the cover.
1Shut down the computer (see page18).
2Turn off any attached devices and disconnect them from their
electrical outlets.
NOTICE: To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
3Disconnect the computer power cable from the wall outlet, and then
press the power button to ground the system board.
4Face the front of the computer. Place your left hand on the left side of
the computer. Push back the release latch at the top-back edge of the
computer to release the computer cover into your left hand.
release latch
computer cover